The eagle tree should work with the LCD output to determine the RPM while running the slave. I however will have to look elsewhere to calibrate the unit. I think the way to go for me will be to use a steel flywheel and the Sentry with its reliable RPM output. The problem with the Eagle tree at present is a huge amount of noise when the system is idle. Huge RPM spikes are present. At about 200 RPM the RPM reading will stailize. Unfortunately I have missed a lot of important data before 200 RPM is reached. The flywheel spreadsheet cannot be used with the Eagle tree at 4.2 v. Stay tuned.
I tried the Sentry RPM sensor on the Eagle Tree. The motor would not run.
The Eagle Tree magnetic sensor may produce smooth RPM data. This V2 sensor is full of noise problems.
john
Last edited by John Stranahan; 05-27-2011 at 12:25 AM.